Update version of github workflow

Author: montabot

.github/workflows/backstage_techdocs.yaml

@@ -24,10 +24,10 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-node@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.9'